

Harry Potter and the Methods of Rationality
Eliezer Yudkowsky, Eneasz Brodski; ty to JK Rowling
This is an alternate universe story, where Petunia married a scientist. Harry enters the wizarding world armed with Enlightenment ideals and the experimental spirit.
Episodes
Mentioned books

Nov 9, 2011 • 29min
27a – Empathy, part 1
Fred and George struggle to recall a prank they pulled on Harry Potter, Harry discovers his dark side's ability to mimic others, Harry expresses frustration over missed Quidditch match, Severus Snape asks Harry for help with a case of bullying, Severus Snape discusses the bullying faced by LaSath

Nov 3, 2011 • 34min
26 – Noticing Confusion
In this episode, Harry encounters a mysterious disappearance, debates magical safety lectures, discusses alternate universes, has a secret meeting with Professor Quirrell, uncovers a plot, receives an enigmatic gift, and finds a shocking clue.

Oct 27, 2011 • 32min
25 – Hold Off on Proposing Solutions
Students discuss the hereditary nature of magic and the sources of magical abilities. The complexity of spells and the role of words and wand movements are explored. Malfoy warns Harry and reveals his trick to make Malfoy unable to become a death eater. Characters strategize on exposing the harmful teachings of the defense professor. Fred and an unidentified person plan to do something impossible to prove themselves.

Oct 20, 2011 • 26min
24 – Machiavellian Intelligence Hypothesis
Draco reflects on his actions and fears for his father's reputation. Harry reveals his ultimate goal of working together for the truth. Draco loans Harry money for a plot and they discuss rationality. Draco questions his motives and doubts Harry's plan. Harry and Draco discuss the origins of human intelligence and Draco's quest for revenge.

Oct 13, 2011 • 41min
23 – Belief in Belief
Draco and Harry explore the concept of heredity through a metaphor involving pieces of paper, and discuss the significance of magical papers in determining one's wizard status. They delve into the potential causes of magic's decline and have a heated argument about their differing beliefs. Draco turns to Harry for help while grappling with the consequences of his actions as a scientist.

4 snips
Oct 6, 2011 • 35min
22b – The Scientific Method, part 2
Harry Potter and Draco discuss the implications of Harry's gift to a mudblood. They debate the relevance of caring about others' opinions. Harry and Draco engage in a role-playing exercise to test the blood-purist hypothesis. They discuss the decline of magic and brainstorm tests to distinguish between different theories. Harry and Draco devise a plan, leading to a rushed exit.

Sep 29, 2011 • 29min
21b & 22a – Rationalization, part 2 & The Scientific Method, part 1
Harry Potter tries science, receives warnings about Snape, reflects on adventures at Hogwarts, contemplates comparing stories, receives shocking prophecy, begins scientific study of magic, questions beliefs of wizards and limitations of magic, conducts unbiased experiments

Sep 22, 2011 • 27min
21a – Rationalization, part 1
Hermione reflects on her relationship with Harry amid rivalry and romance. The chapter explores rationalization and the power of science. The idea of testing strength and its political implications is discussed. The danger of seeking knowledge is emphasized. The group is named the 'Bayesian conspiracy'.

4 snips
Sep 15, 2011 • 38min
20 – Bayes’s Theorem
Harry reflects on his potential for darkness and seeks guidance from Professor Kroll. Harry and Professor Quirrell explore a different realm. Harry defends Professor Quirrell's actions and discusses points with Dumbledore. The discussion about Mr. Potter's tutoring and choosing a mentor takes place.

Sep 8, 2011 • 26min
19b – Delayed Gratification, part 2
Professor Quirrell challenges Harry's dominance and teaches him the importance of losing gracefully. Harry faces a dangerous situation with Slytherin students and must control his anger. He chooses not to fight back against bullying, giving a powerful speech on seeking revenge. Harry's unexpected praise for Professor Quirrell and Slytherin house leads to cheers from other students.